Virus transmission was conducted through inoculation of aphids from the same virus carrying individuals with BYDV which was one insect per seeding. The result showed that the duplex immune eleetrophoresis showed positive reaction coinciding with the disease incidence induced by aphids fed with virus artificially at the laboratory, Through the experiment of inoculation and transmission, it was manifested that it was possible to test the virus carrying potential of the vector aphids through immune electrophor...